Navigating the Commons

How do entry, exit, and investment shape common-pool externalities? This paper studies the 19th-century American whaling industry from the viewpoint of strategic firm dynamics.

October 2025 · Yangkeun Yun

Water Investment and Pricing

This paper examines overinvestment in groundwater pumping in California, where water utilities share aquifers but rarely coordinate to preserve them. Using a panel dataset combining utilities’ production, pricing, and extraction data with measures of aquifer levels, we estimate an empirical model of investment by regulated utilities.

August 2025 · Will Rafey, Yangkeun Yun

The Road to Ascension: Exams, Lineages and Civil Servants of the Joseon Dynasty

This paper investigate how civil service exams historically screened talent for bureaucrats and family lineages influenced their final appointments.

April 2022 · Sok Chul Hong, Christopher Paik, Yangkeun Yun

Small-Scale Rural Water Supply, Typhoid Eradication, and Human Capital Development

This paper studies the effects of small-scale water supply interventions on population health and human capital formation.

June 2020 · Sok Chul Hong, Yangkeun Yun

Exporting and Innovation in a Dynamic Oligopoly

This paper investigates how firms export and innovate in an oligopolistic environment.

May 2025 · Han Yang, Yangkeun Yun

Public Liquidity and Interbank Markets: Evidence from New Jersey Bank Networks, 1926-1932

This paper studies how public liquidity provision influences the functioning of private markets and the allocation of financial resources. We are currently analyzing data on New Jersey bank networks from 1926 to 1932.

January 2025 · Haelim Anderson, Yangkeun Yun